Strong-tracking self-adaptive-SQKF-based SOC estimation method of emergency lamp battery
An adaptive and strong tracking technology, applied in the direction of measuring electricity, measuring electrical variables, measuring devices, etc., can solve the problems of cumulative error amplification, neural network method is susceptible to interference, and slow dynamic response
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[0035] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0036] Such as figure 2 As shown, an emergency light battery SOC estimation method based on strong tracking adaptive SQKF includes the following steps:
[0037] Step 1 establishes the second-order RC equivalent model of the emergency light battery.
[0038] Such as figure 1 As shown, the second-order RC equivalent model of the emergency light battery includes ideal power supply, ohmic internal resistance R 0 , Electrochemical polarization internal resistance R 1 , concentration polarization internal resistance R 2 , Electrochemical polarization capacitance C 1 , concentration polarization capacitance C 2 . Among them, the positive pole of the ideal power supply is connected to the ohmic internal resistance R 0 one end of the R 0 The other end is connected to the electrochemical polarization internal resistance R 1 one end of the R 1 The othe...
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